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Boosted. having them out for ten days versus five days, its a really big difference for my health care system. and thats true not just for health care systems but for airlines, as you were just talking about, for restaurants, schools. theres a lot of pressure as there are more cases to try to cut down on the isolation period if we can. and we can do it safely, particularly for the vaccinated. >> and what might this mean for schools? weve been seeing some universities moving back to virtual learn...